Upholstery spring edge construction



April 20, 1948. BANK 2,439,789

UPI-IOLSTERY SPRING EDGE cons'rnucwxon Filed April 12, 1944 INVENTOR. ALBERT M. BANK A T TOQNEY Patented Apr. 20, 1948 UPHOLSTERY SPRING EDGE CONSTRUCTION Albert M. Bank, Jersey City, N. J.

Application April 12, 1944, Serial No. 530,609

.10 Claims. (Cl. 155-179) This invention relates to upholstery spring edge construction. It is particularly directed to spring seats employing zig-zag springs and spring edge therefor.

An object of this invention is to provide a spring edge construction of the character described comprising a cantilever spring mounted on each zig-zag spring and so constructed and engaged with the zig-zag spring as to prevent side swing or movement of the cantilever spring in either direction.

Another object of this invention is to provide in a spring edge construction of the character described, a cantilever spring made of spring wire and having a long'arm and a short arm interconnected at their forward ends, both arms being so woven into its supporting zig-zag spring, as to firmly anchor the cantilever spring to the zigzag spring.

Zig-zag springs such as are used in spring seats, are made of various gauge wire. Furthermore, the number of turns per unit length of said springs often vary. It is advantageous to make the cantilever springs of uniform length irrespective of the gauge of the zig-zag spring or the number of turns of said zig-zag spring. Furthermore, the forward edges of the cantilever springs should always be at a predetermined position above the front portion of the frame of the spring seat. In accordance with the present invention, applicants cantilever springs are so constructed that the rear ends of the arms thereof are adjustable relative to the zig-zag spring to allow for variations in the gauge of the wire ornumbers of turns.

constructed that as pressure is imposed thereon,

resistance to such pressure builds up, whereby to provide a spring edge which will increase the comfort to the person sitting on the seat.

Yet a further object of this invention is to provide a strong, durable and compact spring seat construction which will be relatively inexpensive to manufacture, easy to assemble, and yet practical and efficient to a highdegree in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claims,

In the accompanying drawings in which is shown one of the various possible illustrative embodiments of this invention.

Fig, 1 is an elevational cross-sectional view of a spring seat embodying the invention;

Fig. 2 is a top plan view thereof;

Fig. 3 is a partial front view thereof; and

Fig. 4 is a perspective view of a cantilever spring embodying the invention and mounted on a zigzag spring.

Referring now in detail to the drawing, l0 designates an upholstery seat construction provided with a spring edge and embodying the invention. The same comprises a seat frame ll having side walls l2, a front wall l3, and a rear wall l4. Mounted on the frame I I are a plurality of arched parallel zlg-zag springs l5. The front ends of the spring l5 are connected to the upper edge of frame portion l3 by brackets It. The rear ends of the spring l6 are mounted on the upper ends of frame wall l4 by means of brackets l1. Each zig-zag spring l5 comprises parallel arms, rungs or portions 18 interconnected by loops or turns I 9.

Mounted on each zlg-zag spring I5 is a cantilever spring 40, the latter being interconnected by an edging wire 60 thus forming a spring edge for the seat. Each spring is made of spring wire and comprises a long arm 42 and a short arm 43 interconnected at the front by a wire portion 44. The cantilever spring is mounted on spring [5 by weaving arms 42, 43 within the turns of spring l5 as shown in the drawing.

Arms 42 and 43 have parallel similar portions 45 and 4'6 disposed in the same plane with spring portion 44. The short arm 43 also has a portion 41 extending from portion 46 and connected thereto by a bend 48. Portion 41 is inclined downwardly and passes through spring l5 engaging within a loop IS on one side of said spring. Thus portion 41 passes from above spring I5 to below said spring. Extending from portion 41 is a portion 49 connected to portion 41 by a bend 50. Portion 49 passes beneath spring l5 and at the end thereof is an upwardly and outwardly extending curved hook or eye terminal portion 5| which passes upwardly through the spring within the next loop IS on the same side and around said loop. Thus the short arm passes beneath two adjacent arms or rungs l8 of spring [5 and engages two adjacent loops 1!! on opposite sides of said arms.

The long arm 42 has a portion 55 extending from portion 45 and connected thereto by a bend 56. Portion 55 passes above the arm I8, beneath which portion 41 of the short arm 43 passes.

Extending from portion 55 of the long arm 42 is a portion 51 connected to portion 58 by a bend 58. Portion 51 passes beneath the arm It beneath which portion 49 of the short arm passes. Said portion 51, it will be noted, passes down through a loop I! at the opposite side of spring [5 and interconnecting the two arms I! beneath which the short arm engages. Said portion 51 also passes beneath the next arm i8 and at the end thereof is an upwardly and outwardly curved hook or eye-terminal portion 59 engaging the next loop l9. Thus the long arm likewise engages beneath two arms I! of spring l5, and engages with a pair of loops I! at the side of the spring 15, opposite to the two loops which are engaged by the short arm. with such construction both arms are inside of a pair of loops and the cantilever spring 1 cannot swing to the right or to the left but is firmly anchored to the zigzag spring. 1

It will be noted that the cantilever spring 40 may be shifted forwardly or rearwardly to a certain extent to permit adjustment for bringing portion 44 to a predetermined position, thus ailowing for variations in the gauge of the spring i5 and for variations in the number of loops of which said spring is made.

As pressure is increased at the outer end of the cantilever springs, first the short arm presses down against an arm l8 of the spring l5 and then the long arm presses down on the next arm I8. The resistance to downward pressure thus builds up to add comfort to the seat. It will be noted that both the long and short arms engage beneath two arms of the zig-zag spring and over two turns or loops, thus making a good anchor.

The outer end portions 44 of spring 40 are interconnected by an edge wire having a front portion 6i connected to said portions H by split clips 63. Extending from the ends of wire portion 6| are bent back arm portions hooked onto intermediate portions of the outside zig-zag wires in any suitable manner.

It will thus be seen that is provided a, device in which the several objects of this invention are achieved and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and as various changes might bemade in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. In a spring seat, a frame, a zig-zag spring mounted on said frame and a cantilever spring mounted on the zig-zag spring, said cantilever spring extending above the zig-zag spring and having a. short arm and a long arm interconnected at one end, the short arm having a portion engaging beneath a pair of adjacent arms of said zig-zag spring and portions passing through a pair of adjacent loops on one side of said zig-zag spring, and the long arm having a portion engaging beneath one of the first pair of arms and the next arhacent arm of said zig-zag spring, and portions passing through a pair of loops on the opposite side of said zig-zag spring and staggered with respect to the first-mentioned pair of loops the ends of said arms being secured to the loops through whichthey pass.

2. In upholstery spring construction, a frame, a zig-zag spring mounted thereon. and a cantilever spring mounted on the zig-zag spring and extending over said zig-zag spring, and having a short arm and a long arm interconnected at one end, said short arm having a portion engaging beneath a pair of arms of the zig-zag spring and portions passing through a pair of loops on the opposite sides of said arms, and on one side of said zig-zag spring, a portion engaging over one of said loops and said long arm having a portion passing through a loop at the opposite side of said zig-zag spring and between the first-mentioned pair of loops, and said long arm engaging beneath a, pair of arms of said zigzag spring and having a portion engaging over the next loop on said opposite side of said spring.

3. In upholstery spring construction, a zigzag spring comprising arms interconnected by turns, and a cantilever spring mounted thereon and extending thereover, said cantilever spring being made of a single piece of wire and having arms interconnected at one end, one arm of said cantilever spring having portions passing through a pair of turns on one side of said zig-zag spring, and the other arm of said cantilever spring having portions passing through a pair of turns on the opposite side of said zig-zag spring, each arm of said cantilever spring having portions passing beneath and engaging a pair of arms of said zig-zag spring, one of the arms of said cantilever spring being longer than the other arm of said cantilever spring, the terminal portions of said arms engaging over turns of said zig-zag spring.

4. In combination, a zig-zag spring comprising arms interconnected by turns, and a cantilever spring mounted thereon and extending thereover, said cantilever spring comprising a pair of arms interconnected at one end, one of said arms of said cantilever spring having a portion passing down through the zig-zag spring and within one of the turns thereof on one side thereof, and having a portion passing beneath and engaging a pair of arms of said zig-zag spring, and being provided with an upwardly and outwardly curved hook terminal portion passing through an'dengaging over the next turn of said zig-zag spring on the same side, the other arm of said cantilever spring having a portion passing down through the zig-zag spring and within -a turn of said zig-zag spring at the opposite side thereof and betwen said first-mentioned turns of said zig-zag spring, and said second arm of said cantilever spring having a portion passing beneath and engaging a pair of arms of said zigzag spring and provided with an upwardly and outwardly hooked terminal portion passing through and engaging over the next turn of said zig-zag spring on said opposite side.

5. In a spring seat, a frame, a zig-zag spring mounted on said frame and a cantilever spring mounted on the zig-zag spring and extending thereover, said cantilever spring having a short arm and a long arm interconnected at one end. the short arm having a portion engaging beneath a pair of arms of said zig-zag spring and portions passing through a pair of loops on one side of said zig-zag spring, and the long arm having a portion engaging beneath a pair of arms of said zig-zag spring, and portions passing through a pair of loops' on the opposite side of said zig-zag spring and staggered with respect to the firstmentioned pair of loops said arm having terminal portions engaging over the zig-zag spring.

6. In combination. a zig-zag spring comprising arms interconnected by turns, and a cantilever spring mounted thereon and extending thereover, said cantilever spring comprising a pair of arms interconnected at one end, one of said arms of said cantilever spring having a portion passing down through the zig-zag spring and within one of the turns thereof on one side thereof, and having a portion passing beneath and engagin a pair of arms of said zig-zag spring, and being provided with a portion engaging over the next turn of said zig-zag spring on the same side, the other arm of said cantilever spring having a portion passing down through the zig-zag spring and within a turn of said zig-zag spring at the opposite side thereof and between said first-mentioned turns of said zig-zag spring, and said second arm of said cantilever spring having a portion passing beneath and engaging a pair of arms of said zigzag spring and provided with a portion engaging over the next turn of said zig-zag spring on said opposite side.

7. In upholstery construction, a frame, zig-zag springs mounted on said frame, and cantilever springs mounted on the zig-zag springs and extending thereover, each zig-zag spring comprising arms interconnected by turns, each cantilever spring comprising a pair of arms interconnected at one end, each arm of the cantilever springhaving a portion passing down through a turn or a zig-zag spring, and a portion engaging beneath a pair of arms of a zig-zag spring, and a portion passing upwardly through a turn of a zig-zag spring, and a portion engaging over a turn of said zig-zag spring.

8. In upholstery construction, a frame, zig-zag springs mounted on said frame, and cantilever springs mounted on the zig-zag springs and extending thereover, each zig-zag spring comprising arms interconnected by turns, each cantilever spring comprising a pair of arms interconnected at one end, each arm of the cantilever spring having a portion passing down through a turn of a zig-zag spring, and a portion engaging beneath a pair of arms of a zig-zag spring, and a portion passing upwardly through a turn of a zig-zag spring, and a portion engaging over a turn of said zig-zag spring, the last-mentioned portion of each arm comprising a downwardly opening terminal hook engaging said turn.

9. In upholstery construction, a frame, zig-zag springs mounted on said frame, and cantilever springs mounted on the zig-zag springs and extending thereover, each zig-zag spring comprising arms interconnected by turns, each cantilever spring comprising a pair of arms interconnected at one end. each arm of the cantilever spring having a portion passing down through a turn of a zig-zag spring. and a portion engaging beneath a pair of arms oi a aig-zag spring, and a portion passing upwardly through a turn of a zis-zas spring, and a portion engaging over a turn of said zig-zag spring, the last-mentioned portion of each arm comprising a downwardly opening terminal hook engaging said turn, one arm of each cantilever spring being located adiacent one side of a zig-zag spring, and the other arm of said cantilever spring being located adiacent an opposite side of a zig-zag spring.

10. In upholstery construction, a frame, zig-zag springs mounted on said frame, and cantilever springs mounted on the zig-zag springs and extending thereover, each zig-zag spring comprising arms interconnected by turns, each cantilever spring comprising a pair of arms interconnected at one end, each arm of the cantilever spring having a portion passing down through a turn of a zig-zag spring, and a portion engaging beneath a pair of arms of a zig-zag spring, and a portion passing upwardly through a turn of a zig-zag spring, and a portion engaging over a turn of said zig-zag spring, the last-mentioned portion of each arm comprising a downwardly opening terminal hook engaging said turn, one arm of each cantilever spring being located adjacent one side of a zig-zag spring, and the other arm of said cantilever spring being located adjacent an opposite side of a zig-zag spring, one arm being shorter than the other, and the arms of the zig-zag spring engaged by one arm of said cantilever spring being offset with respect to the arms of the zig-zag spring engaged by the other arm of said cantilever spring.

ALBERT M. BANK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,166,989 Gleason July 25, 1939 2,215,373 Krakauer Sept. 17, 1940 2,241,551 Hopkes May 13, 1941 2,257,633 Bank Sept. 30, 1941 2,235,554 Hopkes Mar. 18, 1941 2,311,145 Widman Feb. 16, 1943 228,789 Stockberger June 15, 1880 290,126 Slack Dec. 11, 1883 493,581 Foster Mar. 14, 1893 2,249,031 Neely July 15, 1941 1,728,289 Josephson Sept. 17, 1929 807,765 Myers Dec. 19, 1905 2,008,670 Lee July 23, 1935 2,356,417 Mayer Aug. 22, 1944 FOREIGN PATENTS Number Country Date 15,847 Great Britain July 6, 1912 

